Government of the District of Columbia - Washington,...

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Government of the District of Columbia Department of Transportation

Office of Contracting and Procurement 2000 14th Street, N.W., 6th Floor

Washington, D.C. 20009

Amendment No. 4 Issued July 18, 2008

Invitation No.: DCKA-2007-0164-B-ND Title: Construction of Anacostia Initial Line Segment and the Operation and

Maintenance Facility, and Reconstruction of Firth Sterling Avenue. In accordance with Block 11 of Page 1 of this amendment, BIDDERS must acknowledge receipt of this Amendment No. 4. Failure to do so may result in rejection of your bid. Item 4-1 SECTION B: CONSTRUCTION Reference Section B.3

DELETE Section B.3.1, which reads “Streetcar tracks, and turnouts”, and REPLACE with the following:

“B.3.1 Streetcar tracks and turnouts (including bolts and spring washers).”

Item 4-2 SECTION B: CONSTRUCTION Reference Section B.3

ADD the following language at the end of Section B.3:

“The OCS poles are located at the DDOT Warehouse identified above. The streetcar tracks, turnouts, and substation equipment are located at Gallatin St NE & 6th Pl NE, Washington D.C. 20017.”

Item 4-3 SCHEDULE OF ITEMS

DELETE the Schedule of Items, consisting of twenty-six (26) pages, in its entirety, and REPLACE with the Schedule of Items, consisting of twenty-six (26) pages, which are labeled 8RR through 33RR, and attached hereto as Attachment A4-3.

BIDDERS must use this Schedule of Items (Bid Schedule) in submitting their bids.

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Item 4-4 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS

Reference Section C.36 PORTABLE CHANGEABLE MESSAGE SIGN: 616 110 (CLIN #1330)

ADD the following to Section C.36: “C.36.1 Measure and Payment

The unit of measure for the specified Portable Changeable Message Signs will be each. Payment for each Portable Changeable Message Signs furnished and installed by the Contractor shall include all labor, materials, equipment, tools, and incidentals necessary to accomplish the work.”


Reference Section C.55.4.h HDPE CONDUIT DELETE Section C.55.4.h in its entirety. Item 4-6 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS

Reference Section C.64 AS-BUILT DRAWING Item 108 004 (CLIN #0190)

DELETE reference to “CLIN #0190”, and REPLACE with “CLIN #0200”.


Reference Section C.67 STREETCAR TRACKS CROSSING CSX RAILROAD TRACK, Item 000 506 (CLIN #0040) ADD the following after Section C.67.1.b: “C.67.2 MEASURE AND PAYMENT Payment will be made at the unit price stipulated under CLIN #0040 for each linear foot of CSX railroad track, crossties and ballast removed under this contract, and payment will include all labor, supervision, materials, equipment, insurance, tools and incidentals necessary to complete the work.”


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Reference Section C.68 PEDESTRIALS CROSSING CSX RAILROADTRACK, Item 000 506 (CLIN #0050) ADD the following after Section C.68.1: “C.68.2 MEASURE AND PAYMENT Payment will be made at the unit price stipulated under CLIN #0050 for each linear foot of CSX railroad track, crossties and ballast removed at pedestrian crossings under this contract, and payment will include all labor, supervision, materials, equipment, insurance, tools and incidentals necessary to complete the work.”


Reference Section C.80.1 MATERIALS



Reference Section C.83 OCS POLE FOUNDATIONS, Item No. 618992 (CLIN 0080, 0090, & 0100, 0110)

DELETE reference to “Item No. 618992”, and REPLACE with “Item No. 000506”.


Reference Section C.85 PAVED TRACK, Item No. 000 506 (CLIN #0140)

DELETE reference to “Item No. 000506”, and REPLACE with “Item No. 000509”.

Item 4-12 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.85.4 SUBMITTALS

DELETE the first sentence of Section C.85.4.j, which reads “The contractor shall submit shop drawings for rails that will be curved”, and REPLACE with the following sentence:

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“DDOT will provide the contractor with shop drawings for rails that will be curved.” Note: The District is responsible for purchasing the precurved rails, not the Contractor.

Item 4-13 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.85.6 MATERIALS FURNISHED BY DC DOT ADD the following to Section C.85.6:

“Straight rail length is nominal 60-feet, with up to 10% shorts allowed, and curve length may vary. All curves of 500 feet radius or less will be pre-curved. All pre-curved rails will be Ri59.” Bidders should cross-reference Section C.85.6 and this amendment item with Section C.86.5 (Materials to be Furnished by the District) and Item 4-17 below.

Item 4-14 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.85.22.(d) Distressing Rail

DELETE Section C.85.22.d.i in its entirety, and REPLACE with the following:

“i For distressing purposes, the rail will be considered to be fastened

when the concrete is placed and reaches its initial set. Rail zero stress (neutral) temperature at final closure and fastening shall be 70 ˚F ± 20 ˚F.”

Item 4-15 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.85.25 Bonded Insulated Joints

DELETE Section C.85.25 in its entirety. All references to “bonded insulated joins” shall be deleted from this contract.

Item 4-16 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.85.35.a and b Paved Track

DELETE the last sentence in Sections C.85.35.a and C.85.35.b, which reads “Payment for saw cutting and excavation for Paved Track is

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included in the “Trackway Excavation” bid item as stated in Section 00641”, and REPLACE with the following: “Payment for saw cutting and excavation for Paved Track is included in the Hard Surface Pavement Excavation bid item as stated in CLIN #0230, and in accordance with the Article 202.03 (Hard Surface Pavement Excavation) of the Standard Specifications for Highways and Structures, 2007 Edition.”

Item 4-17 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.86.5 Materials to be furnished by the District

ADD the following to Section C.86.5.a:

“Rail lengths are nominal 60 feet with maximum of 10% shorts, and are manufactured by VAE Nortrak North America, Inc. DDOT will provide all support plates, concrete anchor embeds, anchors, bolts, joint bars, and all miscellaneous nuts, bolts and washers and other hardware necessary to allow the Contractor to install turnouts. Joint bars are used only where Ri52 is joined to Ri59. Transition rails from Ri52 to Ri59 will be furnished by the District and installed by the Contractor”

ADD the following after Section C.86.5.d: “(e) Standard plates for 25 M turnouts.” Item 4-18 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.86.6 Materials to be furnished by the Contractor

DELETE Section C.86.6.c, which reads “Field fabricated Bonded Insulated Joints shall be in accordance with Section C.86.” DELETE Section C.86.6.c, which reads “Welding Kits for Ri59 and Ri52 rail sections”, and REPLACE with the following:

“(c) Welding kits for Ri59 and Ri52 rail sections and welding kits for

Ri52 and 115RE rail sections.” DELETE Section C.86.6.f in its entirety. DELETE Section C.86.6.h in its entirety.

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DELETE Section C.86.6.j in its entirety. All reference to crossing diamonds shall be deleted from the IFB documents.

ADD the following subsection: “(l) Transition rails from Ri52 to 115RE shall be furnished and

installed by the Contractor.”

Item 4-19 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.86.23 Payment

DELETE reference to “Crossing Diamond per AREMA” and “Crossing Sidewalk” under Section C.86.23.b (Pay Item).

Note: All reference to crossing diamonds shall be deleted from the IFB documents.

Item 4-20 SECTION C: SCOPE/SPECIFICATIONS/DRAWINGS Reference Section C.93.1 DESCRIPTION

DELETE the word “exclusive” in the first sentence, and REPLACE with the word “inclusive”, so that the sentence reads “…PEPCO work inclusive of the Temporary Lighting…”


Reference Section C.94 POLE MOUNTED CCTV CAMERA AND POLE, Item No. 618997 (CLIN #2370)

DELETE the title of Section C.94 in its entirety, and REPLACE with following title: “C.94 POLE MOUNTED CCTV CAMERA AND DOME, Item No. 618997 (CLIN #2380).”

Note: Payment will be made at the unit price of “EACH” for each set of CCTV camera and Dome provided and installed.


Reference Section C.97 PLATFORM LEANING RAILS, Item No. 609993 (CLIN #0170)

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DELETE reference to “Item #609993”, and REPLACE with “Item #000509”.


Reference Section C.103 CONDUIT AND UNDERGROUND DUCTBANK, Item 618993 (CLIN 2030, 2040 and 2050)

DELETE the title of Section C.103 in its entirety, and REPLACE with the following title: “C.103 DUCTBANK – TRACTION ELECTRIFICATION, Item 618993 (CLIN 2080, 2090 and 2100)”


Reference Section C.104 MANHOLES AND HANDHOLES, Item No. 618992 (CLIN #2100)



Reference Section C.107 TRACTION POWER SUBSTATION INSTALLATION, Item 618992 (CLIN 2090 and 2100)

DELETE the title of Section C.107 in its entirety, and REPLACE with the following title: “C.107 INSTALLATION OF PRE FABRIC SUBSTAION (MAINLINE), AND INSTALLATION OF SUBSTATION EQUIPMENT IN PLACE (MAINTENANCE FACILITY), Item 618992 (CLIN # 2060 and 2070).”


Reference Section C.107.5.c Installation of Substation Equipment

ADD the following sentence to Section C.107.5.c.ii:

“DDOT shall be responsible for the cost associated with the manufacturer’s field service engineer. The Contractor shall not be entitled to any additional compensation for the work of installing, wiring, testing and starting-up the substations.”

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Reference Section C.107.11 Measurement and Payment

DELETE Section C.107.11.c (Payment will be made under) in its entirety, and REPLACE with the following: “(c) Payment will be made under Item Number Description Pay Unit 618992 Mainline Substation Installation Each 618992 Maintenance Facility Substation Installation Each”


Reference Section C.107

ADD the following after C.107.11.c: “C.107.12 Substation Supplier Powell Electrical Manufacturing Company 8967 Pleasantwood Avenue NW North Canton, OH 44720”


Reference Section C.108 OVERHEAD CONTACT SYSTEM, Item No. 618992, 618993 (CLIN 2090 - 2300)

DELETE reference to “CLIN 2090 - 2300”, and REPLACE with “CLIN 2140 - 2290”.


Reference Section C.110 TRAIN TO WAYSIDE COMMUNICATION SYSTEM, Item 618992 (CLIN 2070)

DELETE reference to “CLIN 2070”, and REPLACE with “CLIN 2120”.


Reference Section C.110 TRAIN TO WAYSIDE COMMUNICATION SYSTEM

ADD the following at the end of Section C.110.2.a:

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“The carborne portion of the TWC system was manufactured by Hanning & Kahl, and their North American representative is CosmoRail, Inc., 1123 Morrison Heights Drive, Oakville, On, Canada L6J 4H9”.


Reference Section C.111 SWITCH CONTROLLER, Item 618992 (CLIN 2080)

DELETE reference to “CLIN 2080”, and REPLACE with “CIN 2130”.


Reference Section C.111 SWITCH CONTROLLER, Item 618992 Reference Amendment No. 4, Item 4-32

ADD the following after C.111.2.(a): “1 Powered

- Maintenance Yard Entrance (Station 1000+00) - South Capitol & Firth Sterling (Station 138+74)

Manual - Bolling AFB Station - Maintenance Yard Track (Station 1003+00) - Maintenance Yard Track (Station 1004+00) - Anacostia Station”


Reference Section C.113 TRACK ELECTRICAL TESTING, Item 618992 (CLIN 2070)

DELETE reference to “CLIN 2070”, and REPLACE with “CLIN 2370”.

Item 4-35: CONTRACT DRAWINGS

DELETE the current drawings and ADD the new drawings, as follows: Current Drawings New Drawings G-06 G-06R G-07 G-07R

T-30 T-30R T-31 T-31R T-32 T-32R T-33 T-33R

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S-03 S-03R S-04 S-04R S-05 S-05R S-06 S-06R S-07 S-07R S-08 S-08R SM-02 SM-02R SM-03 SM-03R SM-04 SM-04R SM-05 SM-05R SM-06 SM-06R

All new drawings are incorporated herein by reference, and can be obtained from the Bid Room at the address listed below:

Office of Contracting and Procurement (Bid Room) 2000 14th Street, N.W., 3rd Floor Washington, D.C. 20009 Telephone # (202) 671-1564 Note: Revised drawings will be mailed to Plan Holders.

District Department of Transportation PAGE: 8RR

DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR: ________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- SECTION 0001-ANACOSTIA INITIAL LINE SEGMENT AND RECONSTRUCTION OF FIRTH

STERLING AVENUE ------------------------------------------------------------------------------ |000506 UNASSIGNED | | | 0010|SPECIAL ITEM -EACH - | 150.000| | | 0.060 INCH | EACH | | | PVC GEOMEMBRANE ROLL | | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0020|SPECIAL ITEM -EACH - | 32.000| | | TRACK DRAINAGE | EACH | | | BASE AND GRATE | | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0030|SPECIAL ITEM -EACH - | 6.000| | |TRACK TUB DRAIN |EACH | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0040|SPECIAL ITEM -EACH - | 2500.000| | |REMOVAL OF CSX RAILROAD | | | |TRACK, CROSSTIES& BALLAST|LF | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0050|SPECIAL ITEM -EACH - | 100.000| | |REMOVAL CSX RR TRACK, | | | |CROSSTIES & BALLAST AT |LF | | |PEDESTRIAN CROSSINGS | | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0060|SPECIAL ITEM -EACH - | 3.000| |

|TRACK BUMPING POST |EACH | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED- LS | | | 0070|PICK UP AND TRANSPORT D.C| 1.000|LUMP SUM | |FURNISHED MATERIALS TO |LUMP SUM | | |THE WORK SITES | | . | . ------------------------------------------------------------------------------

|000506 UNASSIGNED- EACH | | | 0080|OCS POLE | 125.000| | |FOUNDATION TYPE 1 |EACH | . | . ------------------------------------------------------------------------------

|000506 UNASSIGNED- EACH | | | 0090|OCS POLE | 8.000| | |FOUNDATION TYPE 2 |EACH | . | . ------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 9RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------ LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS| CTS | DOLLARS|CTS ------------------------------------------------------------------------------ |000506 UNASSIGNED | | | 0100|OCS POLE | 9.000| | |FOUNDATION TYPE 3 |EACH | . | . ----------------------------------------------------------------------------------------------------------------------- |000506 UNASSIGNED | | | 0110| OCS POLE | 15.000| | |FOUNDATION TYPE 4 |EACH | . | . ------------------------------------------------------------------------------- |000506 UNASSIGNED | | | |SPECIAL ITEM -EACH - | 3.000| | *0120|TURNOUT |EACH | | |STRAIGHT FROG | | . | . --------------------------------------------------------------------------------- |000506 UNASSIGNED | | | |SPECIAL ITEM - EACH - | 3.000| | *0130|TURNOUT |EACH | |CURVED FROG | | . | . ------------------------------------------------------------------------------- |000509 UNASSIGNED | | | *0140|CONCRETE SPECIAL ITEM | 10200.000| | |RI52 AND RI59 |LF | | |PCC PAVED TRACK | | . | . ------------------------------------------------------------------------------------------------------------------------- |000509 UNASSIGNED | | | 0150|SPECIAL ITEM -LF - | 30.000| | |8"X12" FLUSH |LF | | |GRANITE EDGING | | . | . ------------------------------------------------------------------------------- |000509 UNASSIGNED | | | 0160|SPECIAL ITEM -LF - | 140.000| | |609993 |LF | | |12"X20" GRANITE STRAIGHT | | | |CURB | | . | . ------------------------------------------------------------------------------- |000509 UNASSIGNED | | | 0170|SPECIAL ITEM -LF - | 600.000| | |PLATFORM LEANING |LF | | |RAIL | | . | . ------------------------------------------------------------------------------- |000515 UNASSIGNED | | | 0180|SPECIAL ITEM -SY - | 200.000| | |PRECAST CONCRETE |SY | | |TACTILE PAVERS | | . | . ------------------------------------------------------------------------------- *DDOT FURNISHED AND CONTRACTOR INSTALLED ITEMS, SEE SECTION B.3 ABOVE.

Attachment A4-3

District Department of Transportation PAGE: 10RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |108002 | 1.000| | 0190|PROGRESS PHOTOGRAPHS |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |108004 | 1.000| | 0200|AS-BUILT DRAWINGS |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |201002 CLEARING AND | 1.000| | 0210|GRUBBING |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |202002 | | | 0220|COMMON EXCAVATION | 3250.000| | | |CY |CY . | . ------------------------------------------------------------------------------- |202004 HARD SURFACE | | | 0230|PAVEMENT EXCAVATION | 2833.000| | | |CY |CY . | . ------------------------------------------------------------------------------- |205008 DEMOLITION | | | 0240| | 400.000| | | |CY |CY . | . ------------------------------------------------------------------------------- |206002 STRUCTURAL | | | 0250|BACKFILL | 5500.000| | | |CY |CY . | . ------------------------------------------------------------------------------- |206006 MACADAM AND OLD | | | 0260|ROADWAY MATERIAL | 1820.000| | |EXCAVATION |CY | . | . ------------------------------------------------------------------------------- |207002 TRENCH EXCAVATION | | | 0270|AND BACKFILL | 3600.000| | | |CY | . | . ------------------------------------------------------------------------------- |207004 TRENCH UNDERCUT | | | 0280|EXCAVATION | 6400.000| | | |CY | . | . ------------------------------------------------------------------------------- |207006 GRAVEL FOR TRENCH | | | 0290|UNDERCUT | 3350.000| | | |CY | . | . ------------------------------------------------------------------------------- |207008 BORROW TRENCH | | | 0300|BACKFILL | 2230.000| | | |CY | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 11RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |209002 | | | 0310| AGGREGATE BASE | 3750.000| | | COURSE |CY | . | . ------------------------------------------------------------------------------- |212002 | | | 0320| TEST PIT | 50.000| | | |EACH | . | . ------------------------------------------------------------------------------- |213002 GEOSYNTHETIC | | | 0330| STABILIZED SUBGRADE | 4500.000| | | USING GRADED AGGREGATE |CY | | | BASE | | . | . ------------------------------------------------------------------------------ |214002 | | | 0340| 200010 PERMEABLE BASE, | 4500.000| | | 6 INCH |SY | . | . ------------------------------------------------------------------------------- |309002 | | | 0350| SEWER MANHOLE ON | 18.000| | | SEWER 48 INCH AND LESS |EACH | | | DIAMETER | | . | . ------------------------------------------------------------------------------- |310003 | | | 0360| GRATE TYPE CATCH | 17.000| | | BASIN |EACH | . | . ------------------------------------------------------------------------------- |310005 | | | 0370| DOUBLE GRATE TYPE CATCH | 14.000| | | BASIN |EACH | . | . ------------------------------------------------------------------------------- |310006 STANDARD | | | 0380| TRIPLE CATCH BASIN | 21.000| | | |EACH | . | . ------------------------------------------------------------------------------- |310008 | | | 0390| BASIN CONNECT PCC | 920.000| | | PIPE, CLASS III, 15 INCH|L.F. | . | . ------------------------------------------------------------------------------- |310010 | | | 0400| BASIN CONNECT PCC | 550.000| | | PIPE, CLASS III, 18 INCH|L.F. | . | . ------------------------------------------------------------------------------- |310012 | | | 0410| BASIN CONNECT PCC | 680.000| | | PIPE, CLASS IV, 15 INCH |L.F. | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 12RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |310014 | | | 0420|BASIN CONNECT PCC | 170.000| | |PIPE, CLASS IV, 18 INCH |L.F. | . | . ------------------------------------------------------------------------------- |310992 | | | 0430|TRACK DRAIN CONNECT PCC | 220.000| | |PIPE, CLASS IV, 15 INCH |L.F. | . | . ------------------------------------------------------------------------------- |311002 ADJUST | | | 0440|SEWER-WATER-UTILITY | 11.000| | |MANHOLE FRAME |EACH | . | . ------------------------------------------------------------------------------- |311004 RESET | | | 0450|SEWER-WATER-UTILITY | 3.000| | |MANHOLE FRAME |EACH | . | . ------------------------------------------------------------------------------- |311010 ADJUST STANDARD | | | 0460|BASIN TOP | 2.000| | | |EACH | . | . ------------------------------------------------------------------------------- |311016 REPLACE | | | 0470|SEWER-WATER MANHOLE | 3.000| | |FRAME COVER |EACH | . | . ------------------------------------------------------------------------------- |311022 | | | 0480|REBUILD | 400.000| | |SEWER-WATER MANHOLE |VLF | . | . ------------------------------------------------------------------------------- |311034 | | | 0490|ADJUST STANDARD | 3.000| | |MANHOLE TOP |EACH | . | . --------------------------------------------------------------------------- |311063 | | | 0500|CLEAN SEWER STRUCTURE | 30.000| | | |EACH | . | . ------------------------------------------------------------------------------- |311065 | | | 0510|CLEAN PCC PIPE | 900.000| | | |L.F. | . | . ------------------------------------------------------------------------------- |311991 | | | 0520|ADJUST, REBUILD OR | 8.000| | |REPLACE UTILITY MANHOLE |EACH | . | . ------------------------------------------------------------------------------- |312002 | | | 0530|REPLACE SEWER-WATER | 3.000| | |MANHOLE FRAME |EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 13RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |312006 | | | 0540| REPLACE STANDARD CATCH | 3.000| | | BASIN TOP |EACH | . | . ------------------------------------------------------------------------------- |312991 SPECIAL ITEM -EACH| | | 0550|REPLACED SEWER/WATER | 11.000| | |MANHOLE FRAME |EACH | | ------------------------------------------------------------------------------- |314046 PCC PIPE, CLASS | | | 0560|IV, GASKET, 15 INCH | 1750.000| | | |LF | . | . ------------------------------------------------------------------------------- |314048 PCC PIPE, CLASS | | | 0570|IV, GASKET, 18 INCH | 200.000| | | |LF | . | . ------------------------------------------------------------------------------- |315002 | | | 0580| PIPE SEWER TV | 1.000| | | INSPECTION |LUMP SUM |LUMP SUM . | . ------------------------------------------------------------------------------- |402002 | | | 0590|SUPERPAVE SURFACE | 4100.000| | |COURSE, 19 MM |TON | . | . ------------------------------------------------------------------------------- |402012 | | | 0600|SUPERPAVE SURFACE | 1022.000| | |COURSE, 12.5 MM |TON | . | . ------------------------------------------------------------------------------- |403002 | | | 0610|TACK COAT | 12000.000| | | |SY | . | . ------------------------------------------------------------------------------- |409002 ASPHALT PATCHING | | | 0620|SUPERPAVE SURFACE COURSE,| 60.000| | |12.5 MM |TON | . | . ------------------------------------------------------------------------------- |500008 | | | 0630|CONCRETE RETAINING WALL | 92.000| | | |CY | . | . ------------------------------------------------------------------------------- |504006 | | | 0640|PCC DRIVEWAY-ALLEY | 45.000| | |ENTRANCE, 7 INCH |SY | . | . ------------------------------------------------------------------------------- |601002 | | | 0650|PCC BUS STOP | 50.000| | | |CY | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 14RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |601008 | | | 0660|PCC PEDESTRIAN ISLAND | 72.000| | | |CY | . | . ------------------------------------------------------------------------------- |601010 | | | 0670|STANDARD PCC COPING, 9 | 80.000| | |INCH HIGH |CY | . | . ------------------------------------------------------------------------------- |603002 UNDERDRAIN PIPE, | | | 0680|4 INCH | 4160.000| | | |LF | . | . ------------------------------------------------------------------------------- |603010 UNDERDRAIN | | | 0690|CONNECT PIPE, 4 INCH | 900.000| | | |LF | . | . ------------------------------------------------------------------------------- |603012 UNDERDRAIN | | | 0700|CONNECT PIPE, 6 INCH | 200.000| | | |VLF | . | . ------------------------------------------------------------------------------- |605036 | | | 0710|REMOVE GUIDERAIL BURIED | 6.000| | |TERMINAL |EACH | . | . ------------------------------------------------------------------------------- |605038 | | | 0720|REMOVE W BEAM / THREE | 260.000| | |BEAM GUIDERAIL |EACH | . | . ------------------------------------------------------------------------------- |605993 | | | 0730|STEEL GUIDERAILS | 520.000| | | |LF | . | . ------------------------------------------------------------------------------- |606002 PAVEMENT | | | 0740|PROFILING (MILLING) | 2320.000| | | |SY | . | . ------------------------------------------------------------------------------- |607005 | | | 0750|TEMPORARY SAFETY | 5000.000| | |FENCE |LF | . | . ------------------------------------------------------------------------------- |607006 | | | 0760|CHAIN LINK FENCE | 2500.000| | | |LF | . | . ------------------------------------------------------------------------------- |608004 | | | 0770|PCC SIDEWALK, 4 INCH | 2250.000| | | |SY | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 15RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |608016 REPLACE | | | 0780|PCC SIDEWALK, 4 INCH | 600.000| | | |SY | . | . ------------------------------------------------------------------------------- |609014 PCC CIRCULAR CURB | | | 0790|AND GUTTER, 15 TO 18 | 3700.000| | |INCH DEPTH |LF | . | . ------------------------------------------------------------------------------- |609040 PCC CIRCULAR CURB | | | 0800|FOR ALLEY-DRIVE ENTRANCE | 53.000| | | |LF | . | . ------------------------------------------------------------------------------- |609068 | | | 0810|8"X12" GRANITE STRAIGHT | 4000.000| | |CURB |LF | . | . ------------------------------------------------------------------------------- |609070 | | | 0820|8"X12" GRANITE CIRCULAR | 120.000| | |CURB, RADIUS UNDER 10 | | | |FT. |LF | . | . ------------------------------------------------------------------------------- |609072 | | | 0830|8"X12" GRANITE CIRCULAR | 1110.000| | |CURB, RADIUS 10-100 FT. | | | | |LF | . | . ------------------------------------------------------------------------------- |609096 | | | 0840|GRANITE CURB TRANSITION | 180.000| | | |LF | . | . ------------------------------------------------------------------------------- |609200 PCC | | | 0850|WHEELCHAIR/BICYCLE RAMP | 15.000| | |NEW CONSTRUCTION |EACH | . | . ------------------------------------------------------------------------------- |609993 | | | 0860|8”X20” CONCRETE STRAIGHT | 125.000| | |CURB |LF | . | . ------------------------------------------------------------------------------- |609993 | | | 0870|2” METAL PAINTED PIPE | 600.000| | |HANDRAIL |LF | . | . ------------------------------------------------------------------------------- |610004 | | | 0880|SEED WITH 4” TOP SOIL | 1000.000| | | |SY | | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 16RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |610006 | | | 0890|HYDROSEED | 10,500.000| | | |SY | . | . ------------------------------------------------------------------------------- |610012 | | | 0900|RENOVATE GRASS | 200.000| | | |SY | . | . ------------------------------------------------------------------------------- |610058 | | | 0910|PLANTING SOIL MIX | 2310.000| | | |CY | . | . ------------------------------------------------------------------------------- |610060 | | | 0920|MULCH | 1200.000| | | |SY | . | . ------------------------------------------------------------------------------- |611002 REMOVE TREE AND | | | 0930|STUMP UP TO 6 INCH DIA. | 22.000| | | |EACH | . | . ------------------------------------------------------------------------------- |611004 REMOVE TREE AND | | | 0940|STUMP 6 TO 12 INCH DIA. | 13.000| | | |EACH | . | . ------------------------------------------------------------------------------- |611006 REMOVE TREE AND | | | 0950|STUMP 12 TO 18 INCH DIA. | 3.000| | | |EACH | . | . ------------------------------------------------------------------------------- |611104 | | | 0960|LITTER RECEPTACLE | 8.000| | | |EACH | . | . ------------------------------------------------------------------------------- |611219 ACER PLATANOIDES | | | 0970|COLUMNAR 3 - 3 1/2 INCH | 95.000| | |GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |611237 | | | 0980|ARM STRONG RED MAPLE | 196.000| | |4 INCH GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |611435 | | | 0990|PURPLE WINTER CREEPER | 438.000| | |2 1/4 INCH POT |EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 17RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |611627 | | | 1000|WILLIAM PENN BARBERRY | 3049.000| | |3 1/2 - 4 FT, B&B |EACH | . | . ------------------------------------------------------------------------------- |611642 | | | 1010|EVERGREEN MAGNOLIA | 8.000| | |4 INCH GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |611868 | | | 1020|FRAGRANT SUMAC | 82.000| | |5 GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |611911 | | | 1030|GOLDMOUND SPIREA | 203.000| | |5 GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |612000 | | | 1040|RUBY CINQUEFOIL | 12291.000| | |1 GAL., B&B |EACH | . | . ------------------------------------------------------------------------------- |612002 | 1.000| | 1050|MOBILIZATION |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |614012 PORTABLE | | | 1060|PRECAST PCC BARRIER | 2020.000| | | |LF | . | . ------------------------------------------------------------------------------- |615002 TWO-PLY | | | 1070|MEMBRANE WATERPROOFING | 9450.000| | | |SY | . | . ------------------------------------------------------------------------------- |615004 THREE-PLY | | | 1080|MEMBRANE BARRIER | 4350.000| | | |SY | . | . ------------------------------------------------------------------------------- |616001 | | | 1090|MAINTENANCE OF HIGHWAY | 1.000| | |TRAFFIC |LUMP SUM |LUMP SUM . | . ------------------------------------------------------------------------------- |616004 CONSTRUCTION LANE | 1.000| | 1100|CLOSED |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |616006 REMOVE LANE | | | 1110|MARKINGS | 3200.000| | | |SF | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 18RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |616008 TEMPORARY | | | 1120|CONSTRUCTION SIGN | 35.000| | |SUPPORTS |EACH | . | . -------------------------------------------------------------------------------

|616010 | | | 1130|PORTABLE TRAFFIC SIGNAL | 30.000| | |BASES |EACH | . | . ------------------------------------------------------------------------------- |616012 CONSTRUCTION | | | 1140|WARNING AND DETOUR SIGNS | 800.000| | | |SF | . | . ------------------------------------------------------------------------------- |616014 REFLECTORIZED | | | 1150|TRAFFIC CONES | 80.000| | | |EACH | . | . ------------------------------------------------------------------------------- |616016 FLASHING AMBER | | | 1160|WARNING LIGHTS, TYPE ‘B’ | 80.000| | | |EACH | . | . ------------------------------------------------------------------------------- |616022 | | | 1170|CONSTRUCTION SIGN WARNING| 25.000| | |FLAGS |EACH | . | . ------------------------------------------------------------------------------- |616024 TYPE III PVC | | | 1180|BARRICADE | 142.000| | | |EACH | . | . ------------------------------------------------------------------------------- |616028 | | | 1190|TRAFFIC DRUMS | 90.000| | | |EACH | . | . ------------------------------------------------------------------------------- |000509 115RE PCC | | | 1200|PAVED RAIL CONTROL | 550.000| | |COOLED WITH BOOT |LF | . | . ------------------------------------------------------------------------------- |616033 DOUBLE YELLOW | | | 1210|4” THERMOPLASTIC | 5270.000| | |PAVEMENT MARKING |LF | . | . ------------------------------------------------------------------------------- |616035 6” YELLOW | | | 1220|THERMOPLASTIC PAVEMENT | 1300.000| | |MARKING |LF | . | . ------------------------------------------------------------------------------- |616042 THERMOPLASTIC | | | 1230|PAVEMENT MARKING, 4 INCH | 2350.000| | |DASH |LF | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 19RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |616044 THERMOPLASTIC | | | 1240|PAVEMENT MARKING, 6 INCH | 4150.000| | | |LF | . | . ------------------------------------------------------------------------------- |616048 WHITE | | | 1250|THERMOPLASTIC PAVEMENT | 1000.000| | |MARKING, 8 INCH |LF | . | . ------------------------------------------------------------------------------- |616049 WHITE DASH | | | 1260|THERMOPLASTIC PAVEMENT | 3700.000| | |MARKING, 8 INCH |LF | . | . ------------------------------------------------------------------------------- |616050 WHITE | | | 1270|THERMOPLASTIC PAVEMENT | 2000.000| | |MARKING, 12 INCH |LF | . | . ------------------------------------------------------------------------------- |616051 WHITE | | | 1280|THERMOPLASTIC PAVEMENT | 1520.000| | |MARKING, 24 INCH |LF | . | . ------------------------------------------------------------------------------- |616052 THERMOPLASTIC | | | 1290|PAVEMENT LETTER | 120.000| | | |EA | . | . ------------------------------------------------------------------------------- |616054 THERMOPLASTIC | | | 1300|PAVEMENT ARROW | | | | |EACH 64.000| . | . ------------------------------------------------------------------------------- |000506 RAIL TRANSITION | | | 1310|SECTION PCC PAVED, RI52 | 6.000 | | |TO 115RE, 3.28 FT LONG |EACH | . | . ------------------------------------------------------------------------------- |616066 DIAGONAL YELLOW | | | 1320|THERMOPLASTIC PAVEMENT | 52.000| | |MARKING, 24 INCH |LF | . | . ------------------------------------------------------------------------------- |616090 | | | 1320A|CONSTRUCTION ZONE | 10.000| | |(TEMPORARY) ATTENUATOR |EACH | . | . ------------------------------------------------------------------------------- |616091 TEMPORARY | | | 1320B|IMPACT ATTENUATOR | 30.000| | |REMOVAL AND RESET |EACH | . | . ------------------------------------------------------------------------------- |616110 | | | 1330|PORTABLE CHANGEABLE | 4.000| | |MESSAGE SIGN |EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 20RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |616992 | | | 1340| | 2.000| | |STD. STEEL MONOLEVER POLE|EACH | | |WITH 32 FT LONG MAST ARM | | . | . ------------------------------------------------------------------------------- |616992 | | | 1350| | 3.000| | |STD. STEEL MONOLEVER POLE|EACH | | |WITH 36 FT LONG MAST ARM | | . | . ------------------------------------------------------------------------------- |616992 | | | 1360| | 1.000| | |STD. STEEL MONOLEVER POLE|EACH | | |WITH 42 FT LONG MAST ARM | | . | . ------------------------------------------------------------------------------- |616992 | | | 1370| | 2.000| | |STD. STEEL MONOLEVER POLE|EACH | | |WITH 46 FT LONG MAST ARM | | . | . ------------------------------------------------------------------------------- |616992 | | | 1380|MAST ARM POLE FOUNDATION | 9.000| | |FOR STD. STEEL MONOLEVER |EACH | | |W/BEYOND 20 FT MAST ARM | | . | . ------------------------------------------------------------------------------- |500003 | | | 1390|ENDWALLS FOR 18 INCH | 3.500| | |PIPE CULVERTS |C.Y. | . | . ------------------------------------------------------------------------------- |617002 | | | 1400|INDUCTIVE | 1690.000| | |LOOP DETECTOR |LF | . | . ------------------------------------------------------------------------------- |617006 REMOVE | | | 1410|ABANDONED TRAFFIC SIGNAL | 15.000| | |STREET LIGHT POLE |EACH | | |FOUNDATION | | . | . ------------------------------------------------------------------------------- |617008 | | | 1420|PCC FOUNDATION | 12.000| | |FOR TRAFFIC SIGNAL POLE |EACH | | |OR PENDANT POST STREET | | | |LIGHT POLE | | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 21RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |617010 | | | 1430|3 FT X 3 FT | 4.000| | |ELECTRICAL MANHOLE |EACH | | ------------------------------------------------------------------------------- |617012 | | | 1440|4FT X 4 FT | 1.000| | |ELECTRICAL MANHOLE |EACH | . | . ------------------------------------------------------------------------------- |617014 | | | 1450|ONE 2 INCH PVC | 100.000| | |ENCASED ELECTRICAL | | | |CONDUIT |LF | . | . ------------------------------------------------------------------------------- |617016 | | | 1460|ONE 4 INCH PVC | 320.000| | |ENCASED ELECTRICAL | | | |CONDUIT |LF | . | . ------------------------------------------------------------------------------- |617018 | | | 1470|#10 AWG | 20.000| | |STRANDED WIRE |LF | . | . ------------------------------------------------------------------------------- |617020 | | | 1480|#8 AWG | 290.000| | |STRANDED GROUND WIRE |LF | . | . ------------------------------------------------------------------------------- |617022 | | | 1490|#6 AWG | 840.000| | |STRANDED GROUND WIRE |LF | . | . ------------------------------------------------------------------------------- |617024 | | | 1500 GALVANIZED | 15.000| | |STEEL TRANSFORMER BASE |EACH | . | . ------------------------------------------------------------------------------- |617028 | | | 1510|HAND BOX | 9.000| | | |EACH | . | . ------------------------------------------------------------------------------- |617030 | | | 1520|ONE 2 INCH AND | 150.000| | |TWO 4 INCH PVC ENCASED | | | |EL ELECTRICAL CONDUITS |LF | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 22RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |617032 | | | 1530|ONE 2 INCH AND | 950.000| | |ONE 4 INCH PVC ENCASED |LF | | |ELECTRICAL CONDUITS | | . | . ------------------------------------------------------------------------------- 1540|617034 | | |

|FOUR 4 INCH PVC | 4.000| | |ENCASED ELECTRICAL |EACH | | |CONDUITS | | . | . ------------------------------------------------------------------------------- 1550|617038 | | |

|PCC FOUNDATION | 4.000| | |FOR CONTROLLER CABINET |EACH | . | . ------------------------------------------------------------------------------- |617046 | | | 1560|20 FOOT TALL STEEL | 15.000| | |TRAFFIC SIGNAL POLE |EACH | | ------------------------------------------------------------------------------- |617048 | | | 1570|8 FOOT LONG MAST | 2.000| | |ARM WITH CLAMP AND REMO |EACH | | |VEABLE END CAP | | . | . ------------------------------------------------------------------------------- |617050 | | | 1580|7 CONDUCTOR 14 | 8400.000| | |AWG STRANDED ELECTRICAL |LF | | |TRAFFIC SIGNAL CABLE | | . | . ------------------------------------------------------------------------------- |617052 | | | 1590|4 CONDUCTOR 18 | 4150.000| | |AWG STRANDED ELECTRICAL |LF | | |TRAFFIC SIGNAL CABLE | | . | . ------------------------------------------------------------------------------- |617054 | | | 1600|12 PAIR 19 AWG | 3000.000| | |UNDERGROUND |LF | | |COMMUNICATIONS CABLE | | . | . ------------------------------------------------------------------------------- |617056 | | | 1600A|F&I 12 PAIR, 19 AWG | 600.000| | |OVERHEAD COMMUNICATIONS |LF | | |CABLE | | . | . ------------------------------------------------------------------------------- |617068 RED BALL | 36.000| | 1610|LED MODULE |EACH | | ------------------------------------------------------------------------------- |617070 YELLOW | 36.000| | 1620|BALL LED MODULE |EACH | | -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 23RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |617072 GREEN | | | 1630|BALL LED MODULE | 36.000| | | |EACH | . | . ------------------------------------------------------------------------------- |617076 YELLOW | | | 1640|ARROW LED MODULE | 5.000| | | |EACH | . | . ------------------------------------------------------------------------------- |617078 GREEN | | | 1650|ARROW LED MODULE | 7.000| | | |EACH | . | . ------------------------------------------------------------------------------- |617084 12 INCH OVERLAY | | | 1660|LUNAR WHITE | 8.000| | |WALKING PERSON AND PORTL |EACH | | |AND ORANGE RAISED HAND | | | |LED MODULE | | . | . ------------------------------------------------------------------------------- |617086 12 INCH | | | 1670|PORTLAND ORANGE | 8.000| | |COUNTDOWN LED MODULE |EACH | . | . ------------------------------------------------------------------------------- |617090 | | | 1680|3 SECTION | 15.000| | |CONVENTIONAL TRAFFIC |EACH | | |SIGNAL HEAD ON A POLE | | | |(ALL LENSES 12”) | | . | . ------------------------------------------------------------------------------- |617092 | | | 1690|4 SECTION | 1.000| | |CONVENTIONAL TRAFFIC |EACH | | |SIGNAL HEAD ON A POLE | | | |(ALL LENCES 12”) | | . | . ------------------------------------------------------------------------------- |617094 | | | 1700|5 SECTION | 1.000| | |CONVENTIONAL TRAFFIC |EACH | | |SIGNAL HEAD ON A POLE | | | |(ALL LENCES 12”) | | . | . ------------------------------------------------------------------------------- |617096 | | | 1710|4 SECTION | 15.000| | |CONVENTIONAL TRAFFIC |EACH | | |SIGNAL HEAD ON A MAST | | | |ARM (ALL LENSES 12”) | | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 24RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------ |617098 | | | 1720|4 SECTION CONVENTIONAL | 1.000| | |TRAFFIC SIGNAL HEAD ON A |EACH | | |MAST ARM (ALL LENSES 12”)| | . | . ------------------------------------------------------------------------------- |617100 | | | 1730|5 SECTION CONVENTIONAL | 4.000| | |TRAFFIC SIGNAL HEAD, |EACH | | |(ALL LENSES 12”) | | . | . ------------------------------------------------------------------------------- |617114 | | | 1740|2 SECTION CONVENTIONAL | 8.000| | |PEDESTRIAN SIGNAL |EACH | | |HEAD ON A POLE,(12”) | | . | . ------------------------------------------------------------------------------- |617118 | | | 1750|PEDESTRIAN PUSH | 8.000| | |BUTTON |EACH | . | . ------------------------------------------------------------------------------- |617120 | | | 1760|MICROWAVE VEHICLE | 7.000| | |DETECTOR |EACH | . | . ------------------------------------------------------------------------------- |617124 | | | 1770|TRAFFIC SIGNAL | 4.000| | |CONTROLLER AND CABINET |EACH | . | . ------------------------------------------------------------------------------- |617126 REMOVE ABANDONED | | | 1780|TRAFFIC SIGNAL CONTROLLER| 2.000| | | CABINET FOUNDATION |EACH | . | . ------------------------------------------------------------------------------- |617130 REMOVE TRAFFIC | | | 1790|SIGNAL POLE AND TRAFFIC | 3.000| | |SIGNAL EQUIPMENT |EACH | . | . ------------------------------------------------------------------------------- |617132 REMOVE TRAFFIC | | | 1800|SIGNAL CONTROLLER AND | 4.000| | |CABINET |EACH | . | . ------------------------------------------------------------------------------- |617164 | | | 1810|TRAFFIC SIGN PANELS | 310.000| | | |SF | . | . ------------------------------------------------------------------------------- |618016 | | | 1820|36" X 36" X 36" | 17.000| | |MANHOLE |EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 25RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618022 | | | 1830|48" X 48" X 48" | 17.000| | |MANHOLE |EACH | . | . ------------------------------------------------------------------------------- |618072 | | | 1840|1-2" SCHEDULE 40 | 3405.000| | |RIGID PVC CONDUIT |LF | . | . ------------------------------------------------------------------------------- |618148 | | | 1850|6-4" SCHEDULE 40 | 1240.000| | |RIGID PVC CONDUIT | | | |DUCTBANK |LF | . | . ------------------------------------------------------------------------------- |618150 | | | 1860|6-4” AND 2-2" | 765.000| |

|SCHEDULE 40 RIGID PVC | | | |CONDUIT (DUCTBANK) |LF | . | .

------------------------------------------------------------------------------- |618152 | | | 1870|6-4” AND 1-2" | 160.000| | |SCHEDULE 40 RIGID PVC | | | |CONDUIT (DUCTBANK) |LF | . | . ------------------------------------------------------------------------------- |618154 | | | 1880|4-4" SCHEDULE 40 | 500.000| | |RIGID PVC CONDUIT (DUCT | | | |BANK) |LF | . | . ------------------------------------------------------------------------------- |618160 | | | 1890|2-4" | 380.000| | |SCHEDULE 40 RIGID PVC | | | |COND UITS (DUCT BANK) |LF | . | . ------------------------------------------------------------------------------- |618190 | | | 1900|#10 STRANDED | 18120.000| | |WIRE |LF | . | . ------------------------------------------------------------------------------- |618250 | | | 1910|#0000 STRANDED | 8430.000| | |WIRE |LF | . | . ------------------------------------------------------------------------------- |618292 | | | 1920|#8 STRANDED | 10710.000| | |GROUND WIRE |LF | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 26RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618310 | | | 1930|#2 STRANDED | 2810.000| | |GROUND WIRE |LF | . | . ------------------------------------------------------------------------------- |618394 | | | 1940|15" B.C. STREET | 38.000| | |LIGHT POLE FOUNDATION |EACH | . | . ------------------------------------------------------------------------------- |618400 REMOVE STREET | | | 1950|LIGHT POLE FOUNDATION | 37.000| | | |EACH | . | . ------------------------------------------------------------------------------- |618436 | | | 1960|15" B.C STEEL | 26.000| | |TRANSFORMER BASE |EACH | . | . ------------------------------------------------------------------------------- |618526 | | | 1970|TWIN #20 STEEL/ | 16.000| | |CAST IRON POLE |EACH | . | . ------------------------------------------------------------------------------- |618748 | | | 1980|150 WATT HPS | 79.000| | |TEAR DROP FIXTURE |EACH | . | . ------------------------------------------------------------------------------- |618760 | | | 1990|250 WATT HPS | 9.000| | |TEAR DROP FIXTURE |EACH | . | . ------------------------------------------------------------------------------- |618992 ELECTRICAL WORK | | | 2000|SPECIAL ITEM -EACH- | 5.000| | |UP to 24 FOOT |EACH | | |ARM ON STEEL MONOLEVER | | | |POLE | | . | . ------------------------------------------------------------------------------- |618992 ELECTRICAL WORK | | | 2010|SPECIAL ITEM -EACH- | 33.000| | |4’ ARMS ON TWIN-20 POLE |EACH | | | | | . | . ------------------------------------------------------------------------------- |618992 ELECTRICAL WORK | | | 2020|SPECIAL ITEM -EACH- TWIN | 46.000| | |4’ ARMS ON OCS POLES |EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 27RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618992 ELECTRICAL WORK | | | 2030|SPECIAL ITEM -EACH- | 7.000| | |CLEAN AND RELAMP |EACH | |

|EXISTING FIXTURES | | . | . ------------------------------------------------------------------------------- |618992 ELECTRICAL WORK | | | 2040|SPECIAL ITEM -EACH- | 4.000| | |UNDER PASS |EACH | | |LIGHTING FIXTURES | | . | . ------------------------------------------------------------------------------- |618999 PAYMENT TO PEPCO | | | 2050|FOR CONNECTION, | 1.000| | 30500.00 |DISCONNECTION, AND | LUMP SUM |LUMP SUM | |INSPECTION | | . | . ------------------------------------------------------------------------------- |618992 INSTALLATION OF | | | *2060|PRE FABRIC SUBSTATION | 2.000| | |(MAINLINE) |EACH | . | . ------------------------------------------------------------------------------- |618992 INSTALLATION OF | | | *2070|SUBSTATION EQUIPMENT IN | 1.000| | |PLACE (MAINTENANCE |EACH | | |FACILITY) | | . | . ------------------------------------------------------------------------------- |618993 DUCTBANK -TRACTION| | | 2080|ELECTRIFICATION, | 220.000| | |1 X 4” |LF | . | . ------------------------------------------------------------------------------- |618993 DUCTBANK -TRACTION| | | 2090|ELECTRIFICATION, | 720.000| | |2 X 4” |LF | . | . ------------------------------------------------------------------------------- |618993 DUCTBANK -TRACTION| | | 2100|ELECTRIFICATION, | 30.000| | |6 X 4” |LF | . | . ------------------------------------------------------------------------------- |618992 | | | 2110|MANHOLES AND HANDHOLES | 3.000| | | |EACH | . | . ------------------------------------------------------------------------------- |618992 TRAIN TO | | | 2120|WAYSIDE COMMUNICATION | 3.000| | |(TWC) |EACH | . | . ------------------------------------------------------------------------------- *DDOT FURNISHED AND CONTRACTOR INSTALLED ITEMS, SEE SECTION B.3 ABOVE.

Attachment A4-3

District Department of Transportation PAGE: 28RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618992 SWITCH | | | 2130|CONTROLLERS | 2.000| | | |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | *2140|GROUNDING OF TAPER | 148.000| | |TUBULAR POLES |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | *2150|GROUNDING OF BALANCE | 7.000| | |WEIGHT ANCHOR POLES |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2160| | 95.000| | |CANTILEVER ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2170| | 16.000| | |HEADSPAN ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2180|CROSS | 19.000| | |SPAN ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2190|SINGLE | 23.000| | |PULL OFF ASSEMBLY |EACH | . | . -------------------------------------------------------------------------------- |618992 | | | 2200| | 11.000| | |BACKBONE ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2210|BRIDGE | 2.000| | |SUPPORT ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2220|BALANCE | 7.000| | |WEIGHT ANCHOR ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2230|FIXED TERMINATION | 10.000| | |ANCHOR ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- *DDOT FURNISHED AND CONTRACTOR INSTALLED ITEMS, SEE SECTION B.3 ABOVE.

Attachment A4-3

District Department of Transportation PAGE: 29RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618992 | | | 2240|MIDPOINT | 1.000| | |ANCHOR ASSEMBLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2250|DISCONNECT | 6.000| | |SWITCH ASSEMBLY –SINGLE |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2260|CROSSED CONTACT WIRE | 11.000| | |BRIDGE JUMPER |EACH | . | . ------------------------------------------------------------------------------- |618993 | | | 2270|AUTO-TENSIONED | 12000.000| | |SINGLE CONTACT SYSTEM |LF | | | | | . | . ------------------------------------------------------------------------------- |618993 | | | 2280|FIXED | 1500.000| | |TERMINATION SINGLE |LF | | |CONTACT SYSTEM | | . | . ------------------------------------------------------------------------------- |618992 | | | 2290|SECTION | 9.000| | |INSULATOR – SINGLE |EACH | | |CONTACT SYSTEM | | . | . ------------------------------------------------------------------------------- |618992 | | | 2300|MAINTENANCE | 1.000| | |FACILITY OCS CONTROL |EACH | |

|PANEL | | . | . ------------------------------------------------------------------------------- |618992 | | | 2310|WAYSIDE | 1.000| | |POWER SUPPLY |EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2320|SHOP | 1.000| | |CONDUCTOR BAR ON TRACK 2 |EACH | . | ------------------------------------------------------------------------------- |618992 | | | 2330|MAINTENANCE | 3.000| | |SHOP DOOR BRIDGE |EACH | | |ASSEMBLY | | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 30RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |618992 | | | 2340| | 3.000| | |DISCONNECT SWITCH |EACH | | |ASSEMBLY – GROUNDED | | . | . ------------------------------------------------------------------------------- |618992 | | | 2350|SHOP | 6.000| | |DOOR WIRE TERMINATION |EACH | | |ASSEMBLIES | | . | . ------------------------------------------------------------------------------- |618992 | | | *2360|ADDITIONAL SHOP | 1.000| | |SUBSTATION EQUIPMENT |LUMP SUM |LUMP SUM . | . ------------------------------------------------------------------------------- |618991 TRACK | | | 2370|ELECTRICAL TESTING | 1.000| | | |LUMP SUM |LUMP SUM . | . ------------------------------------------------------------------------------- |618997 | | | 2380|CCTV CAMERA | 2.000| | |AND DOME |EACH | . | . ------------------------------------------------------------------------------- |620002 TIMBER GROUND | | | 2390|MOUNTED SIGN POST 4X4 | 100.000| | | |LF | . | . ------------------------------------------------------------------------------- |620011 | | | 2400|METAL SIGN POSTS | 100.000| | | |LF | . | . ------------------------------------------------------------------------------- |625002 | | | 2410|FIELD LAYOUT | 1.000| | | |LUMP SUM |LUMP SUM . | . -------------------------------------------------------------------------------- |624002 ENGINEERING | 1.000| | 2420|FIELD FACILITIES |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |628002 SEDIMENT and | 1.000| | 2430|EROSION CONTROL |LUMP SUM |LUMP SUM | | | | . | . ------------------------------------------------------------------------------- |628003 | | | 2440|PLATFORM PYLON | 8.000| | | |EACH | . | . -------------------------------------------------------------------------------

*DDOT FURNISHED AND CONTRACTOR INSTALLED ITEMS, SEE SECTION B.3 ABOVE.

Attachment A4-3

District Department of Transportation PAGE: 31RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |628041 REBUILDING | | | 2450|D.C. SIGNS | 4.000| | | | EACH | . | . ------------------------------------------------------------------------------- |616992 STD. STEEL MONO- | | | 2460|LEVER POLE WITH 62 FOOT | 1.000| | |LONG MAST ARM | EACH | . | . ------------------------------------------------------------------------------- |618208 | | | 2470|#4 STRANDED WIRE | 4600.000| | | | L.F. | . | . ------------------------------------------------------------------------------- |618452 28’-6” STEEL | | | 2480|PENDANT POST POLE | 10.000| | |WITH UP TO 8 FOOT ARM | EACH | . | . ------------------------------------------------------------------------------- |618566 REMOVE PENDANT | | | 2490|POST POLE 30 FOOT HEIGHT | 37.000| | |OR LESS | EACH | . | . ------------------------------------------------------------------------------- |618992 | | | 2500|250 WATT MH TEAR | 10.000| | |DROP FIXTURE | EACH | . | . ------------------------------------------------------------------------------- |618993 | | | 2510|2-2 INCH SCHEDULE 40 | 220.000| | |PVC CONDUIT | L.F. | . | . ------------------------------------------------------------------------------- |618546 28’-6” FOOT STEEL| | | 2520|PENDANT POLE WITH UP | 12.000| | |TO 8 FOOT ARM | EACH | . | . -------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 32RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS SECTION 0002 – OPERATION AND MAINTENANCE FACILITY ALL DIVISIONS - COSTS INCLUDE INCIDENTAL COSTS ITEMS ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2530|DIVISION 1 | 1.000| | |GENERAL DATA |PER PLAN | | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2540|DIVISION 2 | 1.000| | |SITE CONSTRUCTION |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2550|DIVISION 3 | 1.000| | |CONCRETE |PER PLAN | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2560|DIVISION 4 | 1.000| | |MASONRY |PER PLAN | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2570|DIVISION 5 | 1.000| | |METALS |PER PLAN | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED |NOT APPLICABLE | | 2580|DIVISION 6 |INTENTIONALLY | | |WOOD & PLASTICS |LEFT BLANK | N/A | N/A ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2590|DIVISION 7 | 1.000| | |THERMAL & MOISTURE |PER PLAN | | |PROTECTION | | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2600|DIVISION 8 | 1.000| | |DOORS & WINDOWS |PER PLAN | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2610|DIVISION 9 | 1.000| | |FINISHES |PER PLAN | . | . ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2620|DIVISION 10 | 1.000| | |SPECIALITIES |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2630|DIVISION 11 | 1.000| | |EQUIPMENT |PER PLAN | . | . ------------------------------------------------------------------------------

Attachment A4-3

District Department of Transportation PAGE: 33RR DATE: SCHEDULE OF ITEMS REVISED: 7/18/08 CONTRACT ID: DCKA-2007-B-0164-ND PROJECT(S): DCKA-2007-B-0164-ND CONTRACTOR :________________________________________________________________ ------------------------------------------------------------------------------- LINE| ITEM | APPROX. | UNIT PRICE | BID AMOUNT NO | DESCRIPTION | QUANTITY |----------------|-------------- | | AND UNITS | DOLLARS | CTS | DOLLARS |CTS ------------------------------------------------------------------------------- |700012 UNASSIGNED | | | 2640|DIVISION 12 | 1.000| | |FURNISHINGS |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2650|DIVISION 13 | 1.000| | |SPECIAL CONSTRUCTION |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2660|DIVISION 14 | 1.000| | |CONVEYING SYSTEM |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2670|DIVISION 15 | 1.000| | |MECHANICAL |PER PLAN | . | . ------------------------------------------------------------------------------ |700012 UNASSIGNED | | | 2680|DIVISION 16 | 1.000| | |ELECTRICAL |PER PLAN | . | . | | | |SECTION 0001 - ANACOSTIA INITIAL LINE SEGMENT AND RECONSTRUCTION OF

FIRTH STERLING AVENUE |(ITEM # 10 THRU # 2520) - SUBTOTAL | . | . ------------------------------------------------------------------------------ | | | |SECTION 0002 – OPERATION AND MAINTENANCE FACILITY | |(ITEM # 2530 THRU # 2680) - SUBTOTAL | . | . ------------------------------------------------------------------------------ | | | |TOTAL BID - SECTIONS 0001 + 0002 | . | . -------------------------------------------------------------------------------

Attachment A4-3

1

Government of the District of Columbia Department of Transportation

Office of Contracting and Procurement 2000 14th Street, N.W., 6th Floor

Washington, D.C. 20009

Questions and Answers No.2

Issued July 18, 2008 Q.1 CLIN 630 – Pay Item 500 008 – Concrete Retaining Wall

Pay Item in Schedule of Prices is by the Square Yard. Blue Book Measure and Payment for this item is the Cubic Yard. If by the Square Yard, please define the method of measurement. There is no wall design in the plans, only a detail.

A.1 Reference Amendment No. 2, Item 2-5. Q.2 CLIN 840 – Pay Item 609 096 – Granite Transition Curb Please identify this curb and provide details for its fabrication. A.2 Reference DDOT Standard Drawings 609.06 and 504.01, and Contract Drawings

T-33 and T-34. At platform, curbs shall be transition from 7” to 14”. Q.3 There is no Pay Item for the erection of the DDOT furnished OCS poles. A.3 Reference CLIN #2140 and 2150. Q.4 The plans call for a “9” standard concrete coping along the west side of South

Capitol Street throughout its entire length. This work should actually be curb, not coping.

A.4 Reference DDOT Standard Drawings 602.06 and Contract Drawings T-33 for

information pertaining to 9” coping detail. Q.5 Per Spec. section C.86.6 we are to furnish Anchor bolt assemblies for the

turnouts. Can you provide the turnout plate quantity and arrangement that you are furnishing and how many anchor bolts are required per plate? Also we are to

2

furnish Standard plates for the M25 Turnouts. How many standard plates are required per turnout?

A.5 Reference Amendment No. 4, Items 4-17 and 4-18. Q.6 What lengths of Ri59 and Ri52 will be furnished? A.6 Reference Amendment No. 4, Items 4-17 and 4-18. Q.7 Specification section C.85.22 (d), Destressing Rail. Please provide a procedure

for distressing rail installed in a rubber rail boot. A.7 Reference Amendment No. 4, Item 4-14. Q.8 The storm drain profiles identify runs of pipe where 15" Class III RCP is to be

utilized however there is no bid item for Class III RCP. Furthermore, the quantity for Item 0560 reflects all proposed 15" RCP to be class IV. Please clarify.

A.8 Pipes shall be Portland Concrete Pipes (PCC). Reference CLIN #0390 and 0400

for the PCC Class III, and CLIN #0560 for PCC Pipe Class IV Gasket. Q.9 The typical sections for Firth Sterling Avenue depict curb shown on both sides of

the street but do not indicate whether it should be granite or PCC. Please clarify. A.9 All new street and platform curbs on Firth Sterling Avenue shall be granite. Q.10 Could DDOT please explain the purpose for Item 0240 - Demolition? What

scope of work does this item include and on what plan sheets can this work be found?

A.10 Removal of abandoned pipes, manholes, poles, pole base, fencing, trash, tires,

construction debris, miscellaneous items, etc., from the track path and associated work off South Capitol Street and the Maintenance Yard. Also, please reference Amendment No. 4, Item 4-3 (revisions to CLIN #0240).

Q.11 Plan sheet 43 was missing from our set of plans. Could DDOT please provide

this plan sheet?

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A.11 A copy of Drawing No. T-17 (sheet 43 of 395) can be provided to any Plan Holder upon written request to the Contract Specialist, Neville Daley, at the following e-mail address: [email protected].

Q.12 Plan sheet 22 has a note that states "All hard surface removal including concrete

pavement, curb and gutter, coping, etc. as described in D.C. Standard Specification 202.03 shall be incidental to pay item 202.002 Common Excavation" and D.C. Standard Specification 202.02 states that this holds true if no item for Hard Surface Pavement Excavation is provided but, DDOT has provided an item for this work already (Item 0230 - Hard Surface Pavement Excavation). Please clarify.

A.12 Bidders shall use CLIN #0220 for work related to common excavation and CLIN

#0230 for work related to hard surface pavement excavation, as required by the bid documents (Schedule of Items, etc.).

Q.13 Please clarify what is meant by section L.5.1 “Each bidder shall return the

complete solicitation as its bid”.

1.Question: Does this mean the entire Volumes 1 of 2 and 2 of 2 spec books and plans? OR…… Is there a separate booklet containing bid documents that was not distributed with the original plans and specs that is to be submitted for this project? If so, will copies be distributed to all contractors who purchased plans and specs?

2.How many copies of proposal are to be submitted? Page 5 of Standard Form A, Block 10 states “original plus 1 copy” and page 409, L.5 states that “one (1) signed original plus two (2) copies of the bid are to be submitted “.WHICH IS CORRECT?

A.13 Reference Amendment No. 2, Items 2-3 and 2-31. Q.14 Volume I – Page 109 list a procedure for distressing rail. We have never seen a

distressing procedure for embedded track and do not [know] of any procedure for meeting these specifications. The rail will essentially be like the rebar with nothing to prevent thermal movement until encased in concrete. Please advise.

A.14 Reference Amendment No. 4, Item 4-14.

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Q.15 Volume I – Page 103 says we are to provide shop drawings for all precurved rails. As you have already purchased the precurved rails, we assume the shop drawings were done during this process. Is this correct?

A.15 Reference Amendment No. 4, Items No 4-12 and 4-13. Q.16 Volume I – Page 103 [116 not 103] says “crossing diamonds shop drawing to be

designed and submitted for approval to COTR before installation.” Where do these diamonds go and where is the bid item?

A.16 Reference Amendment No. 4, Items No 4-18 and 4-19. Q.17 There are casual references in Volume I to furnishing 115RE rail for inside the

building. On the drawings there appears to be some Posted Track and some embedded track. Is this contract responsible for the trackwork in the building? If so, where are the bid items and quantities for Posted Track and Building Embedded Track? Where is the complete list of materials we are to furnish?

A.17 The Contractor shall be responsible for purchasing and installing all 115RE Rails

trackwork inside the building. The trackwork shown as part of the support rail system within the pit (part of line #2) is to be compensated under CLIN #2570 – Division 5. The Contractor shall be compensated for purchasing and installing the building’s imbedded trackwork for Line #1, the remaining parts of Line #2, and Line #3. Payment for trackwork in CLIN #1200 and CLIN #1310 will be made at the contract unit price per linear feet of 115RE Rails furnished and installed. Also, see changes to CLIN #1200 and 1310 under the revised Schedule of Items.

Q.18 The standard gauge for trapezoidal standing seam roof systems is 24 gauge, not

the 22 gauge noted in specification section 13125. Please advise. A.18 Contract requirements shall remain in effect. Q.19 Reference Specification Volume 1, Section B – Schedule of Items: Line Item

#2640 – Division 12 Furnishings is listed as Not Applicable under Approx. Quantity and Units, Unit Price and Bid Amount. Volume 2, Technical Specifications includes Sections 12481 – Entry Mats, 12491 – Horizontal Louver Blinds and 12500 – Furnishings. Please advise if we are to include any of the division 12 requirements and if so, where they are to be listed on the Schedule of Items.

A.19 Reference Amendment No. 2, Item 2-5, for changes to CLIN #2640.

5

Q.20 Reference Specification Volume 1, Section J, Attachment J.4: This section

contains two (2) Wage Determinations – General Decision Number DC80001 and General Decision Number DC80003. Is the DC80003 to be used only for the Maintenance Facility work? Please clarify.

A.20 As stated on the respective wage determinations, DC80001 is for work related to

“Heavy and Highway construction”, and DC80003 is for work related to “Building Construction”.

Q.21 What building code is being used and what are the loads? Please verify LL, WL,

Ground snow, wind exposure, collateral auxiliary, etc. A.21 Reference Contract Drawing MF-S100. Q.22 Is the canopy with the EPDM roof loaded to the building? If so, what is the load

imparted to the columns? A.22 Reference load criteria on Contract Drawing MF-S100, and apply it during the

computer analysis of the building frame, thus providing overall design reactions. Q.23 Are there any roof and wall panel specifications? Are standard panels to be used? A.23 Reference Section 13125, Article 3.4 (Wall Covering Systems) and Article 3.8

(Roof Systems) for roof panels. Q.24 Please provide a dimensional layout of the mezzanine and work platforms. What

are the dead loads, live loads, support column locations, and flooring materials? A.24 Reference to Structural (“S” series) Drawings, particularly Drawing MF-S203 for

layout. Q.25 Who provides the “Services Support Channel” (A302)? Please provide

information on this support. A.25 Reference Section 16050, Article 2.5

6

Q.26 Are the masonry walls around the perimeter of the building self supported? (i.e. no masonry beam needed)

A.26 Reference Drawings MF-S201, S302 and S401. Q.27 Section C.111.2.a states 2 switch controllers shall be installed at the following

locations:

‐ Maintenance Yard Entrance (Station 1000+00) - Designed Sheet E-01 and Section C.111.2.a

‐ South Capitol & Firth Sterling (Station 138+74) – Designed Sheet E-02 and Section C.111.2.a

What type of switch controllers will be utilized at the following locations? ‐ Bolling AFB Station ‐ Maintenance Yard Track (Station 1003+00) ‐ Maintenance Yard Track (Station 1004+00) ‐ Anacostia Station

A.27 Reference Amendment No. 4, Items 4-32 and 4-33. Q.28 Section 0002 on the bid form. Where are we to put the costs for the Track Work,

and associated items, which goes inside the Maintenance Building? There appears to be no provision for this. We assume that item 0140 accounts for the Track Work outside the building.

A.28 For trackwork inside the building, CLIN #1200 and CLIN #1310 will apply to the

furnishing and installation of control cooled 115RE rail and associated work. CLIN #2570, DIVISION 5, will apply only to the furnishing and installation of the 115RE rail, the support and the associated work in the pit.

Q.29 Bid item # 0630, Concrete Retaining Wall.

Is the quantity of 1,660 SY correct? We cannot locate new retaining walls amounting to this quantity on the plans and cross sections.

A.29 Reference Amendment No. 2, Item 2-5. Q.30 Bid item # 0660, PCC Pedestrian Island.

Is this quantity for the median islands shown on sheets T-11 and T-12? There are no callouts shown on the drawings as for the other items.

7

A.30 Yes, but the estimated quantity of Bid Item No. 0660 is not limited to the work shown on Drawings T-11 and T-12.

Q.31 Bid item # 0670, Standard PCC Coping, 9 inch high.

Is this quantity correct? Quantity survey of the plans and cross sections does not provide enough linear footage to utilize a quantity of concrete this large.

A.31 Reference Amendment No. 2, Item 2-5. Q.32 Bid items # 0080 thru 0110, OCS Pole foundations.

The bid form quantities and the quantities implied on the OCS pole schedules (sheets S-03 thru S-08) do not match. Does the bid form govern?

A.32 Reference Amendment No. 4, Items 4-3 (revised Schedule of Items) and 4-35

(revised Drawing No. S-03R through S-08R). Q.33 The contract specifications reference the Standard Specifications, Blue Book,

2007 Edition. The Office of Contracting and Procurement (Bid-Room) personnel have indicated that they are not aware of this addition. They stated that the current Blue Book Edition is the August 2005 with a 2007 supplement that was posted on the DDOT website. Please confirm.

A.33 Reference Amendment No. 2, Item 2-6. Q.34 REFERENCE: Page 50 – C.34 Reflective Tape Lane Marking

REFERENCE: Page 18 – Schedule of Items – CLIN 1200 (616031) White Reflective Tape Pavement Marking, 12 inch, CLIN 1210 (616033) Double-Faced Yellow 4” Thermoplastic Pavement Marking and CLIN 1220 (616035) Single-Faced Yellow Thermoplastic Pavement Marking Question – In the Schedule of Items, CLIN 1200, 1210 and 1220 are identified with a designation of “each” under the quantity/units column. C.34 Measure and Payment requires a “linear foot” unit of measurement. If required, please provide measurement in units of linear feet.

A.34 Reference Amendment No. 2, Item 2-5. Q.35 REFERENCE: Page 51 – C.36 Portable Changeable Message Sign

REFERENCE: August 2005 Standard Blue Book – 629 Light Emitting Diode (LED)Electronic Sign

8

Question – The referenced documents do not provide a measure or payment for the signs. Please provide clarification on this issue.

A.35 Reference Amendment No. 4, Item 4-4. Q.36 REFERENCE: Page 54 – C.43 Clean PCC Pipe

REFERENCE: Page 12 – Schedule of Items – CLIN 0510 (311065) Clean PCC Pipe Question – C.43.2 and C.43.3 Measure Payment depict a “linear feet” unit of measurement. CLIN 0510 in the Schedule of Items depicts a unit of measurement of “each.” Should this item requires a “linear foot” unit of measurement. If required, please provide the measurement in units of linear feet.

A.36 Reference Amendment No. 2, Item 2-5. Q.37 REFERENCE: Page 55 – C.46 Rebuild Manhole

REFERENCE: Page 12 – Schedule of Items – CLIN 0480 (311022) Rebuild Sewer Manhole Question –In the Schedule of Items, CLIN 0480 is identified with a designation of “linear feet” under the quantity/units column. C.46.2 Measure and Payment requires a unit price per each. If required, please provide a count of each unit.

A.37 Reference Amendment No. 2, Item 2-12, and cross-reference Items 2-5 and 2-15. Q.38 REFERENCE: Page 56 – C.48 Granite Banding, Edging and Curb

REFERENCE: Page 15 – Schedule of Items – CLIN 0780 (608016) Replace PCC Sidewalk,4 inch Question – C.48 Granite Banding, Edging and Curb includes CLIN 0780 Replace PCC Sidewalk, 4 inch. In the Schedule of Items, CLIN 0780 is identified with a designation of “square yards” under the quantity/units column. C.48 requires a Measure and Payment of price per linear feet. If required, should CLIN 0780 be moved to C.47 Sidewalk, 4 inch?

A.38 Reference Amendment No. 2, Item 2-16, and cross-reference Item 2-19.

Q.39 REFERENCE: Page 59 – C.49 Metal Sign Post

REFERENCE: Page 30 – Schedule of Items – CLIN 2390 (620002) Timber Ground Mounted Sign Post 4X4

9

Question – C.49 provides specific instructions for metal sign posts Item 620 041. In the Schedule of Values, CLIN 2390 refers to a timber sign post. Please provide clarification of specification instructions for CLIN 2390 timber sign posts.

A.39 These are two (2) different pay items. Reference Amendment No. 2, Items 2-5

and 2-21, for changes to CLIN #2400 (Section C.49), and Reference Section 620.01 (Wood Sign Posts) of the Standard Specifications for Highways and Structures, 2007 Edition, Division 600 (Incidental Construction), for information pertaining to CLIN 2390.

Q.40 REFERENCE: Page 88 – C.67 Streetcar Tracks Crossing CSX Railroad Track

Question – C.67 does not include a Measure and Payment section. Please provide. ITEM 10

A.40 Reference Amendment No. 4, Item 4-7. Q.41 REFERENCE: Page 89 – C.68 Pedestrian Crossing CSX Railroad Track

Question – C.68 does not include a Measure and Payment section. Please provide. A.41 Reference Amendment No. 4, Item 4-8. Q.42 REFERENCE: Page 89 – C.69 Track Bumping Posts

REFERENCE: Page 8 - Schedule of Items – CLIN 0060 (000506) Unassigned Special Item-Each- Track Bumping Post

Question – C.69 specifies of the contract documents does not state the installation of two track bumping posts at Beginning Station and two track bumping posts at the End Station. In the Schedule of Items, CLIN 0060 has a designation of “3 each” under the quantity/units column. Should the quantity change to reflect the additional post?

A.42 Reference Amendment No. 2, Item 2-29. Q.43 REFERENCE: Page 89 - C.70 Retaining Concrete Walls

REFERENCE: August 2005 Standard Blue Book – 602.01.D(2) Minor Structures- Measure and Payment- Concrete Walls REFERENCE: Page 13– Schedule of Items -– CLIN 0630 (500008) Concrete Retaining Wall (2060 & 2070) Question – The August 2005 Standard Blue Book – 602.01.D(2) identifies a unit of measurement in cubic yards. In the Schedule of Items, CLIN 0630 is identified with a designation of “square yards “under the quantity/units column. Please provide clarification for this issue.

10

A.43 Reference Amendment No. 2, Item 2-5, for changes to CLIN #0630. Q.44 REFERNCE: Page 187 – C.107 Traction Power Substation Installation Item

618992 (CLIN 2090 and 2100) REFERENCE: Page: 27 –Schedule of Items – CLIN 2060 (618992) & CLIN 2070 (618992)

Question: The CLIN numbers referenced in C.07 and on the Schedule of Items do not match. Please clarify

A.44 Reference Amendment No. 4, Items 4-25 and 4-27. Q.45 REFERENCE: Page 187 – C.107 Traction Power Substation Installation Item

618992 (CLIN 2090 and 2100) Question: The contract documents state that DDOT has/will purchase the required substation for this project. Please provide the manufacturers contact information so that the bidder can obtain the required information to price this item accordingly.

A.45 Reference Amendment No. 4, Item 4-28. Q.46 REFERENCE: Page 187 – C.107.5 ( c ) Traction Power Substation Installation

Item 618992 (CLIN 2090 and 2100)

Question: Section C107.5 (c) ii states that the substation shall be installed under the supervision of the manufacturer’s field service engineer. Is the contractor responsible for obtaining for this service or is this service included in the purchase of the equipment (purchased by DDOT)

A.46 Reference Amendment No. 4, Item 4-26. Q.47 REFERENCE: Page 187 – C.107.11 ( c ) Traction Power Substation Installation

Item 618992 (CLIN 2090 and 2100)

Question: The last item in the Measurement of Payment is “Installation” EA. Please provide additional description on this item.

A.47 Reference Amendment No. 4, Item 4-27.

11

Q.48 REFERENCE: Page 210 – C.110.2(a) Train To Wayside Communication System

Question: Please provide the manufacturer’s model number and contact information for the existing Anacostia Streetcar carborne system so that the bidder can obtain the required information to price this item accordingly.

A.48 Reference Amendment No. 4, Items 4-30 and 4-31. Q.49 DC IS FURNISHING TURNOUTS, RI 52 RAIL AND RI 59 RAIL

PLEASE PROVIDE THE LENGTHS OF EACH RAIL AND ANY ADDITIONAL INFORMATION ON THE RAIL? WHO SUPPLIED THE RAIL? A. IS ANY OF IT PRE CURVED? B. IS IT MARKED AS TO LOCATION? C. RAIL # IF PRE CURVED?

A.49 Reference Amendment No. 4, Item 4-13 for additional information on the rail and

supplier. All curves 500’ radius or less will be pre curved by the rail supplier. Reference Drawings T-01, T-06, T-07, T-09, T-10, T-13 and T-14 for additional information/details on pre curved rails, including track curve data and curve numbers.

Q.50 TURNOUTS

A. WHAT IS PROVIDED WITH THE TURNOUT? B. WHO MANUFACTURED THE TURNOUTS? C. DO YOU HAVE A DRAWING FOR THE PLATING FOR THE

TURNOUTS? D. IN THE TUB FOR THE TURNOUTS DO YOU REQUIRE THE

MEMBRANE, PAINTING THE RAILS & RAIL BOOT? E. ARE THE FROGS & SWITCH ASSEMBLIES TO BE WELDED IN

THE TRACK SYSTEM? A.50 Reference Amendment No. 4, Items 4-1 and 4-17, for information pertaining to

the Turnout and its manufacturer. Turnout shop drawings showing special plates will be furnished to the successful

bidder.

There is no requirement to paint rails or rail boot. Reference Drawings T-38 and T-39 (Note #4) for information pertaining to welding of frogs and switch assemblies to the track system.

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Q.51 DO YOU HAVE A DRAWING FOR THE TRACK SHOWING THE

LOCATION OF THE DIFFERENT SIZES OF THE RAIL? A.51 There are no drawings specifically showing the different rail sizes. Pre-curved

rails and turnouts will be Ri59. Other rails will be Ri52, except in the shop where 115RE will be utilized.

Q.52 DO YOU HAVE A DRAWING SHOWING THE DETAILS OF THE TRACK

IN THE BUILDING? A.52 Reference Drawings MF-S401 and MF-S402. Q.53 DO YOU HAVE A MANUFACTURER FOR THE TRACK DRAINS? A.53 It is the responsibility of the bidder to select a qualified manufacturer. Q.54 Can you please provide a detail of the track structure that is located in the

Maintenance Building. A.54 Reference Drawing MF-S401 and MF-S402. Reference Drawing T-34 for

information pertaining to rail typical section of Ri52 and Ri59. Q.55 What is the location of the yard where the rail, turnouts & precurved rail is

stored? A.55 Reference Amendment No. 4, Item 4-2. Q.56 Are the 3/4" x 10" bolts & spring washers supplied with the turnout plates? A.56 Reference Amendment No. 4, Items 4-1 and 4-17.

Q.57 line no. 1210 - item no. 616033 - the quantity has been changed and reflects LF - the description does not clearly identify the type of marking - there is no such striping item as "double-faced 4 inch thermoplastic" double faced is a description for pavement marker lense type. and if the item is for raised pavement markers, the amount (5270) is far more markers than could possibly be utilized on a job of this size.

A.57 Reference Amendment No. 4, Item 4-3 (changes to description of CLIN #1210).

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Q.58 line no. 1220 - item no. 616035 - the quantity has been changed and reflects LF - the description does not clearly identify the type of marking - there is no such striping item as "single faced thermoplastic pavement marking" single faced is a description for pavement marker lense type and if the item is for raised pavement markers, the amount (1300) is also far more markers than could possible be utilized on a job of this size. If this is a thermoplastic pavement marking item, there is no width given to describe the size of the marking being requested.

A.58 Reference Amendment No. 4, Item 4-3, for changes to the description of CLIN #1220.

Q.59 line no. 1290 - item no. 616052 - thermoplastic pavement letter uses the word inch in the description column and shows the quantity in units of LF. Pavement letters are bid as "each".

A.59 Reference Amendment No. 4, Item 4-3, for changes to CLIN #1290. Q.60 Reference specification section C.110.10.iii.b.; this paragraph discusses providing

adequate capacity for described I/O functions. In this usage, does capacity refer to provided and installed I/O that are not used at the time of commissioning, or does it refer to adequate card cage space to accommodate the future installation of I/O?

A.60 Provide for future installation. Section C.110.10(a) states “Each interrogator rack

must contain sufficient backplane wiring, power supply capacity, and spare printed-circuit board socket capacity.” Section C.110.10(b) states “as described above” for each loop.

Q.61 Reference specification section C.111.8.a; this paragraph states that the owner

will provide the switch heaters for the project and that the contractor will provide the switch heater controls. Can the owner provide the manufacturer and model of the switch heaters and/or provide the electrical characteristics of the switch heaters?

A.61 The heaters are supplied by VAE Nortrak North America, Inc.. We anticipate the

heaters to be 230Vac, 1200 W. Q.62 Reference specification section C.111.13.a; this paragraph describes the ‘normal’

position of the switch and the aspect to be provided over a normal switch. It is

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assumed that the switch will normally be lined to allow southbound movements onto what is designated as the INBOUND TRACK on drawing E-02. Is this assumption correct?

A.62 Yes. Normal movement, in this context, shall be with a diverging position of the

switch. Q.63 Reference specification section C.111.14; this paragraph defines furnishing all

labor, materials, tools, equipment and incidentals. Does this include test equipment such as an interrogator tester and a transponder tester? Does this include spares?

A.63 Test equipment and spare parts are not required under this contract. Q.64 Drawing E-02 shows several loops, TWC013, TWC014, TWC015, TWC012 and

signal TS012 that are not described in the operational discussion in C.111.13. Can a description of the expected operation for these loops be provided?

A.64 Reference Section C.110.13. These loops are for signal pre-emption. Q.65 Drawing E-04 shows several loops and a train signal; however, no operational

description is provided. It is assumed that they are for traffic pre-emption only. Can this assumption be confirmed and/or an operational description provided?

A.65 Reference Section C.110.13. These loops are for signal pre-emption. Q.66 Would you please provide me with the address of the project we are bidding as

well as the Ward? A.66 Reference Section C.1.2. Q.67 Drawing numbers T-08, T-09 and T-11 through T-13 depict work to be completed

that either crosses and/or is adjacent to the CSX Railroad tracks. a. Is there a railroad insurance requirement? b. If so, please provide the daily train counts to the contractors which

are required for the contractor to price the required railroad insurance.

A.67 CSX Railroad tracks in this area are not operable.

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Q.68 Drawing numbers T-30 and T-31 depict the typical sections for the railway work and roadway work, respectively. All typical sections illustrate the use of geotextile fabric placed on subgrade covered with six inches (6”) of an aggregate base course. Could the Department please clarify whether this work is to measured and paid under Item Number 0310, Aggregate Base Course, 3750 CY, or Item Number 0330, Geosynthetic Stabilized Subgrade Using Graded Aggregate Base, 4500 CY?

A.68 Reference CLIN #0310 and #0330. Also, please reference Drawing Nos. T-30R

and T-31R, as referenced under Amendment No. 4, Item 4-35. Q.69 Could the Department please clarify and/or describe where Item Number 0560,

PCC Pipe, Class IV, Gasket, 15 Inch, 1750 LF and Item Number 0570, PCC Pipe, Class IV, Gasket, 18 Inch, 200 LF are to be utilized on the project? This type of pipe is considered a low head pressure, A.S.T.M. C361, pipe and there isn’t any such pipe outlined in plan or profile views.

A.69 These drainage pipes are to be utilized on the road between the curbs. Q.70 Attachment J.5, First Source Employment Agreement, project specification pages

328 through 337, describes and outlines the hiring practices to be utilized by the Contractor.

a. If a Contractor is union affiliated, to what extent is this agreement applicable and/or enforceable? (See Page 332, Part VII. Exemptions, Items B and C)

b. If a Contractor is union affiliated, is it necessary to fill out pages 336 and 337 of the document?

A.70 The requirements stipulated in the First Source Agreement shall remain in effect,

regardless of the bidder’s affiliation with a union. Q.71 Reference Bid Item 1130, Portable Traffic Signal Bases. We cannot locate this

item in the civil, MOT or electrical plans. What is this item to be used for? Please provide a description.

A.71 Reference Article 617.22 (Portable Traffic Signal Bases) of the Standard

Specifications for Highways and Structures, 2007 Edition. There are no specific locations shown on the drawings, because locations may change within the limits of the work during construction.

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Q.72 It is apparent that temporary traffic signalization will be required. There are no specific details or plans describing this work. What line item is this paid for? Please provide a description of what is required.

A.72 The traffic signal designs are such that the new traffic signals, conduits, and

manholes can be constructed without having to use temporary traffic signal poles on temporary bases. The two (2) pedestal poles at the intersection of Suitland Parkway and Firth Sterling Avenue can be maintained during construction and do not require temporary bases.

Q.73 The traffic signal prints for the existing intersections to be modified, S Capitol St

& Firth Sterling and Firth Sterling & Suitland Pkwy, make no reference to temporary accommodations for construction. Are items for installation, relocation & removal of temporary bases to be added to the contract?

A.73 There is no requirement for temporary bases and existing poles shall be

maintained without relocation. Q.74 Will items to remove existing communications cable and install overhead

communications cable be added? See sheet 181/395. A.74 Reference Amendment No. 4, Item No. 4-3 (new CLIN #1600A). Q.75 What is the spec on the twin bracket arm holding teardrop fixtures on the OCS

pole. A.75 Reference Drawing No. SL9 for information pertaining to teardrop fixtures. Q.76 The item schedule calls for both Twin-20 poles (line #1970) and Twin-20 poles

with 4’ arms (line # 2010.) Where are the twin-20 poles without 4’ arms installed?

A.76 Reference Amendment No. 4, Item No. 4-3 (see revisions to CLIN #2010) Q.77 Page 74 references item 618-108, 4” Schedule 80 bored conduit. Is this to be

added to the pay items? A.77 Reference Amendment No. 4, Item 4-5.

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Q.78 Page 135 references item 618-991, Temporary lighting. Is this to be added to the pay items?

A.78 Service connection and disconnection to the streetlights shall include temporary

and permanent service connections. Reference Amendment No. 4-20 for change to Section C.93.1.

Q.79 Could the Department please provide the Asphalt Cement Price Index to be

utilized for this project? A.79 Reference Section 401.18 (Adjustment of Price for Asphalt Binder) of the

Standard Specifications for Highways and Structures, 2007 Edition. Q.80 We are a Machine Tool distributor and provide the equipment originally shown in

Specification 11142 – Industrial Tools and Equipment. We are in receipt of the new bid packet for the updated project; however, there are no specifications, that I can find, for the Industrial Tools and Equipment nor the Electrical Equipment (Section 01460).

A.80 Prior bid documents are not indicative of current requirements. Reference Section

11141 for information pertaining to Industrial Tools. Q.81 Please provide the lengths of each size rails. A.81 Reference Amendment No. 4, Item 4-13. Q.82 Is a string schedule for the rail available? A.82 Schedule of pre-curved rails will be provided to the successful bidder. There is

no string schedule for tangents and curves greater than 500 feet radius. Q.83 Are the rails marked to match the string schedule? A.83 Pre-curved rails will be marked to correspond to the schedule. However, there

will not be a string schedule for curves greater than 500 feet radius. Q.84 Is the rail pre curved to fit the curves and spiral curves? A.84 All curves with radius of 500 feet or less will be pre-curved.

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Q.85 Are drawings available showing the locations of the different size rails? A.85 There are no drawings specifically showing the different rail sizes. Pre-curved

rails and turnouts will be Ri59. Other rails will be Ri52, except in the shop where 115RE will be utilized.

Q.86 Since compromise welds are not available for the Ri52 to Ri59 and Ri? [Ri52] To

115RE is the owner providing transition rails? A.86 Reference Amendment No. 4, Items 4-17 and 4-18. Q.87 Who was the supplier of the rail? A.87 Reference Amendment No. 4, Items 4-1 and 4-17. Q.88 What is provided with the turnouts? A.88 Reference Amendment No. 4, Items 4-1 and 4-17. Q.89 Is a drawing available for the plating for the turnouts? A.89 Turnout shop drawings showing special plates will be furnished to the successful

bidder. Q.90 Are Frog and Switch assemblies to be welded into the track system? A.90 Yes. Same as Q&A No.123. Q.91 Who is the supplier of the special trackwork? A.91 VAE Nortrak North America, Inc. Q.92 Who will furnish the operating stands for the turnouts? A.92 There is no requirement for operating stands. Reference Section C.86.6.a for

information pertaining to furnishing turnouts housing and manual hand throw switch mechanism.

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Q.93 Do the tubs for the turnouts require all 3 of the following membrane, painting of

all steel components with elastromeric grout and rubber rail boot? A.93 There is no requirement to paint rails or rail boots. Rubber rail boots are not

required for turnouts in the tub section, and painting is referenced or required. Q.94 Who furnishes the insulated joints in the turnouts? A.94 Reference Amendment No. 4, Item 4-15. Q.95 Per the Storm Drain Structure Schedule calls for 32 track drains and item on the

bid sheets # 0020 shows 29 which is correct? A.95 Reference Amendment No. 4, Item 4-3, for changes to CLIN #0020. Q.96 Do you have a manufacturer for the track drains? A.96 It is the responsibility of the bidder to select a qualified manufacturer. Q.97 Do you have a drawing showing the details for the track in the building floor? A.97 Reference Drawings MF-S401 and MF-S402. Q.98 Per drawing E09 page 208 electric boxes. How many of these are required?

Respectfully requested, A.98 Reference Drawings E-01 and E-03. Q.99 I am writing today to inquire about the “Subcontract Summary Form” which is

depicted in the Project Specifications, for the above referenced project, on page 372. Under Section II of this form it is requesting the “MBOC Cert. No.” for each subcontractor.

1. What is this certification number? 2. Is this certification number one associated with a minority certified

company? 3. If it is a number associated with a minority certified company,

through which agency is a qualified DBE company to be certified to be utilized towards this project’s goal?

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A.99 The “MBOC Cert. No.” is the same as LSDBE certification number. Reference Section L.27.5.B for the contact information pertaining to the LSDBE Certification Program.

Q.100 Plan sheet numbers 137 through 163 outline the suggested maintenance of traffic

for this project. Temporary Impact Attenuators are depicted for utilization. Could

the Department please clarify: a. Whether the Contractor is to utilize DDOT Standard Detail

616.20 - Construction Zone Crash Cushion or DDOT Standard Detail 616.21 - Crash Cushion Inertial System?

A.100a DDOT Standard Detail 616.21 – Crash Cushion Inertial System Unidirectional.

b What is the design speed for the temporary impact attenuators?

A.100b Reference DDOT Standard Detail 616.21– Crash Cushion Inertial System

Unidirectional. c Under what pay item are these temporary impact attenuators to

be measured and paid? A.100c Reference Amendment No. 4, Item 4-3 (new CLIN #1320A).

d Under what pay item is the removal and reset of temporary impact attenuators to be measured and paid?

A.100d Reference Amendment No. 4, Item 4-3 (new CLIN #1320B).

e Under what pay item is the replacement of temporary impact attenuators to be measured and paid?

A.100e Reference Amendment No. 4, Item 4-3 (new CLIN #1320A). Q.101 Portable PCC Barrier is depicted for utilization. Could the Department please

clarify under what pay item is the removal and reset of the portable PCC barrier to be measured and paid?

A.101 Reference CLIN #1060. Q.102 On the back of the bid bond is a box for “Certificate as to Corporation”. Because

we are submitting a proposal as a Joint Venture, do we not fill out that box? Or, if

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we do fill it out, should I list both president’s names and can the corporate secretary who signs it be from either company.

A.102 If the Principal is a Joint Venture, it should be identified as such on the bid bond

and any other documentation pertaining to this solicitation. Note the first page of the bid bond, which calls for the bidder to identify the type of organization that is bidding the job (Individual, Partnership, Joint Venture or Corporation). Bidders should identify the person (or persons) authorized to bind the Joint Venture, and follow the guidelines of its Surety(ies) with respects to a Joint Venture bid/agreement. Also, please refer to Section L.27.4 (Preferences for Certified Joint Ventures) for information pertaining to DSLBD requirements for Joint Ventures, if LSDBE certification is applicable.

Q.103 Is it possible to get revised replacement pages for those affected by the changes

listed in amendments instead of having to do copy, cut and paste of the amendment since this volume has to be copied to provide (2) additional copies with the original bid?

A.103 Bidders are not required to physically make every change indicated in each

amendment and return the changes to the District for approval or acceptance. Bidders are required to recognize the changes and acknowledge the changes (hence, acknowledge receipt of the amendment) by either (a) completing items 8 and 15 of the amendment; (b) acknowledging receipt of the amendment on each copy of the offer submitted; or (c) acknowledging receipt of the amendment by separate letter or fax which includes a reference to the solicitation and amendment number. This is stated in Block 11 of Page 1 of the amendment and reiterated in the introductory paragraph on Page 2 of each amendment.

Q.104 Will there be a Liquid Asphalt Adjustment clause for this project?

A.104 Reference Section 401.18 (Adjustment of Price for Asphalt Binder) of the Standard Specifications for Highways and Structures, 2007 Edition.

Q.105 Is the track inside the building included in the item 0104[0140]. A.105 Tracks inside the building shall be included in CLIN #1200, 1310 and 2570.

Reference Amendment No. 4, Item 4-3, for changes to CLIN #1200 and 1310. Note: This is a revised response to Q&A No. 1, Item 4.

Q.106 Is the rails inside the building being supplied also?

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A.106 The Contractor shall furnish and install all 115RE rails inside the building. Reference Amendment No. 4, Items 4-17 and 4-18, and Q&A No. 105 above. Note: This is a revised response to Q&A No.1, Item 5.

Note: DDOT will provide responses to other outstanding questions via Amendment

No. 5 and Q&A No. 3, which will be issued on or about Wednesday, July 23, 2008. DDOT will not response to questions received after 4:00 p.m. (local time), on Friday, July 18, 2008.

End of Q&A No. 2

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